<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>服务器错误 - Mock响应</title>
    <style>
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            background: #f5f5f7;
            color: #1d1d1f;
            margin: 0;
            padding: 40px 20px;
            text-align: center;
        }
        .error-container {
            max-width: 600px;
            margin: 0 auto;
            background: white;
            border-radius: 12px;
            padding: 40px;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
        }
        .error-code {
            font-size: 4em;
            font-weight: bold;
            color: #ff3b30;
            margin-bottom: 20px;
        }
        .error-message {
            font-size: 1.5em;
            margin-bottom: 20px;
        }
        .error-description {
            color: #86868b;
            margin-bottom: 30px;
        }
        .mock-badge {
            background: #007aff;
            color: white;
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.9em;
            display: inline-block;
        }
    </style>
</head>
<body>
    <div class="error-container">
        <div class="error-code">500</div>
        <div class="error-message">内部服务器错误</div>
        <div class="error-description">
            服务器遇到了一个错误，无法完成您的请求。<br>
            请稍后重试或联系系统管理员。
        </div>
        <div class="mock-badge">Mock响应</div>
    </div>
</body>
</html>